Installation Guide
46
basic installation
horizontal siding installation
Finishing at the Top
Before the final course of siding is 
installed on the wall, any soffit  
accessories that will be used on the 
eaves must be installed. 
Gable Ends
To install into gable ends, make a 
pattern that duplicates the slope of  
the gable (Fig. 1).
Step 1 
Lock a short piece of siding into 
the gable starter course (i.e., the last 
course before the gable starts).
Step 2
Hold a second piece of siding against 
the J-Channel at the slope of the 
gable. Mark the slope with a pencil 
on the short piece of siding.
Step 3
Remove the short piece and cut 
along the pencil line as a pattern 
for the gable angle cuts. Repeat the 
procedure on the opposite side of the 
gable.
Step 4
It may be necessary to fasten the 
last panel at the gable peak with a 
trim nail. Use a 1 1/4˝ to 1 1/2˝ nail. 
[This is the only time a nail should 
be placed in the face of the vinyl 
siding (Fig. 2).]
Draw line here
(Template)
Fig.1
Colored aluminum
or stainless steel
finish nail
Fig. 2










